Chinese Journal of Lasers, Volume. 47, Issue 11, 1106002(2020)
Multiple Radio Frequency Operation Based on a Modulator in a Radio-over-Fiber System
Figures & Tables(6)
Fig. 1. Principle of simultaneous generation of independent optical RF signals with two different frequencies by a modulator. (a)--(d) corresponding simplified spectra at different nodes
Fig. 2. Experimental setup of generation of optical RF signals with two different frequencies by a single modulator
Fig. 3. Optical spectra (5 Gbaud QPSK at 30 GHz+5 Gbaud at 15 GHz, resolution of 0.01 nm). (a) DSB, after back to back; (b) DSB, after 80 km SMF; (c) SSB, after 80 km SMF
Table 1. Key device parameters in the experimental setup
View tableTable 1. Key device parameters in the experimental setup
Device Parameter I/Q mixer1 operated at 22--32 GHz; 6 dB bandwidth: 10 GHz; insertion loss: 10 dB I/Q mixer2 operated at 14--26 GHz; 6 dB bandwidth: 12 GHz; insertion loss: 16 dB EA1 operated at 0-32 GHz, 20 dB gain EA2 operated at 0-32 GHz, 24 dB gain Interleaver 100/200 GHz Polarization multiplexing modulator Bandwidth: 30 GHz; insertion loss: 6.2 dB; polarization isolation larger than 20 dB Photodiode 75 GHz bandwidth EA3 operated at 0--60 GHz Real time OSC 62 GHz bandwidth; 160 GSa/s Sampling oscilloscope (86100A) 40 GHz bandwidth optical port (86106A)
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Li Weiping, Kong Miao, Shi Junting, Yu Jianjun. Multiple Radio Frequency Operation Based on a Modulator in a Radio-over-Fiber System[J]. Chinese Journal of Lasers, 2020, 47(11): 1106002
Paper Information
Category: Fiber optics and optical communication
Received: Mar. 25, 2020
Accepted: --
Published Online: Oct. 29, 2020
The Author Email: Weiping Li (19210720141@fudan.edu.cn)
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